Question

The equation f = v + at represents the final velocity of an object, f, with an initial velocity, v, and an acceleration rate, a, over time, t. Which is an equivalent equation solved for t?

Answer 1

from the above equation,
t = (f-v) / a

Answer 2

$Given \:equation : f = v + at$

$\implies v + at = f$

/* Subtract both sides of the equation by v , we get */

$\implies v + at - v = f - v$

$\implies at = f - v$

/* Dividing both sides by a , we get */

$\implies \frac{at}{a} = \frac{f - v}{a}$

$\implies t = \frac{f - v}{a}$

Therefore.,

$\red { Required \:equation } \green {\: t = \frac{f - v}{a} }$

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